Point of presence
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A point of presence (PoP) is an artificial demarcation point or network interface point between communicating entities. A common example is an ISP point of presence, the local access point that allows users to connect to the Internet with their Internet service provider (ISP). A PoP typically houses servers, routers, network switches, multiplexers, and other network interface equipment, and is typically located in a data center. ISPs typically have multiple PoPs. PoPs are often located at Internet exchange points and colocation centres.
In the US, this term became important during the court-ordered breakup of the Bell Telephone system. A point of presence was a location where a long-distance carrier (IXC) could terminate services and provide connections into a local telephone network (LATA).
- "Definition of Point of Presence (POP) in Network Encyclopedia". networkencyclopedia.com. Retrieved 2020-01-02.
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- Freeman, Roger (2005). Fundamentals of Telecommunications. Wiley. p. 16. doi:10.1002/0471720941.ch1. ISBN 978-0471710455.